Most of us do a lot of self-study either for problem solving or to learn new things. These days a lot of self-study is happening thanks to blogs, discussion forums and even Youtube. So why are we not including these things in a resume? If a person spends good amount of time on learning a new thing on his own is it not worth to include in his/her resume even though it is self-study? At the same time, how can I quantify my self-studied learning ?
I recently added a heading in my resume called personal work, under it I put stuff that I have taught myself, or have just learned over time, but that cannot be placed into an actual work environment.
As far as quantifying it, try not to learn things on sites that don't offer you some sort of proof that you actually did something.
I do a lot of learning on Udemy.com, they have a lot of free courses that are very well done, and can teach you a lot, and once you finish a course they give you a certificate of completion. At least that would give you a tangible proof that you took the course.